: an amorphous polymer related to cellulose that provides rigidity and together with cellulose forms the woody cell walls of plants and the cementing material between them
Examples of lignin in a Sentence
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This causes the cellulose (and remaining lignin) to swell, expanding inwards to fill the lumen.
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Ben Coxworth, New Atlas, 25 Mar. 2025
This wood is chosen for its tight grain and natural flavor compounds, such as lignin and tannins.
—Emily Price, Forbes.com, 4 Apr. 2025
Wood consists of three main components: cellulose, hemicellulose, and lignin.
—Andrew Paul, Popular Science, 26 Mar. 2025
Individual wood fibers are made up mainly of cellulose, along with a binder material known as lignin.
—Ben Coxworth, New Atlas, 25 Mar. 2025
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Ben Coxworth, New Atlas, 25 Mar. 2025
This wood is chosen for its tight grain and natural flavor compounds, such as lignin and tannins.
—Emily Price, Forbes.com, 4 Apr. 2025
Wood consists of three main components: cellulose, hemicellulose, and lignin.
—Andrew Paul, Popular Science, 26 Mar. 2025
Individual wood fibers are made up mainly of cellulose, along with a binder material known as lignin.
—Ben Coxworth, New Atlas, 25 Mar. 2025
See All Example Sentences for lignin
Cite this Entry
“Lignin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lignin. Accessed 9 May. 2025.
Copy CitationKids Definition
lignin
noun
lig·nin
ˈlig-nən 
: a substance related to cellulose that occurs in the woody cell walls of plants and in the cementing material between them
Medical Definition
lignin
noun
lig·nin
ˈlig-nən
: an amorphous polymeric substance related to cellulose that together with cellulose forms the woody cell walls of plants and the cementing material between them
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